I have the same problem with cisco wip310 & miktorik rb411 , they can hear me i cant hear them , with other access point i dont have any problem , i think i will replace all my mikrotik access points, this is very annoying…
I have tried several miniPCI cards, R52nM, R52, CM9, XR2.
The problem with one way voice was only with R52nM, but with the other cards there was a problem too.
I have a group with some IP Phones and 3cx phone system.
When there is an incoming call, all the other phones ring simultaniously, but the WIP310 starts ringing after a few seconds and if i pickup the call from an other phone the WIP310 keeps ringing. Sometimes it doesn’t ring at all.